| 非线性绝热条件下的级联高效非线性光频转换 |
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| 引用本文： | 安斓,徐永刚,林钱兰,朱海飞,林富锟,李永放.非线性绝热条件下的级联高效非线性光频转换[J].中国科学:物理学 力学 天文学,2014(8):804-809. |
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| 作者姓名： | 安斓 徐永刚 林钱兰 朱海飞 林富锟 李永放 |
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| 作者单位： | 陕西师范大学物理学与信息技术学院,西安710062 |
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| 摘 要： | 理论上研究了级联二阶非线性光学效应产生三次谐波中的非线性耦合与能量转移过程.依据受激拉曼绝热通道转移(STIRAP)原理和暗态特征,获得了非线性系统中的非线性绝热条件、分析了实现高效能量转换的物理机理,提出了实现能量完全转换时耦合系数应该满足的基本条件.研究结果对于设计产生三次谐波的光学器件具有重要意义.
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| 关 键 词： | 非线性级联过程 三次谐波 绝热条件 能量转移 |
High-efficiency cascaded nonlinear optical frequency conversion under the condition of nonlinear adiabatic condition |
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| AN Lan,XU YongGang,LIN QianLan,ZHU HaiFei,LIN FuKun ＆ LI YongFang.High-efficiency cascaded nonlinear optical frequency conversion under the condition of nonlinear adiabatic condition[J].Scientia Sinica Pysica,Mechanica & Astronomica,2014(8):804-809. |
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| Authors: | AN Lan XU YongGang LIN QianLan ZHU HaiFei LIN FuKun ＆ LI YongFang |
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| Institution: | ( College of Physics and Information Technology, Shanxi Normal University, Xi＇an 710062, China) |
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| Abstract: | We studied the energy transfer and nonlinear coupling process of the third harmonic produced by cascaded second-order nonlinear optical effects. Based on the stimulated Raman adiabatic passage （STIRAP） principle and stability characteristics of the dark state, we obtained the adiabatic condition in the nonlinear system, analyzed the physical mechanism of energy conversion with high efficiency, and put forward the fundamental condition that the coupling coefficients should satisfy in order to realize the complete energy transfer. The result had great significance in optical device designing that produced third harmonic. |
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| Keywords: | nonlinear cascaded process third harmonic adiabatic condition energy transfer |
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